Manual stapler



FIG. 1 is a top plan view of a manual stapler showing our design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is an end view thereof;

FIG. 6 is an end view thereof; and

FIG. 7 is a perspective view thereof. 

The ornamental design for a manual stapler, as shown and described. 